изменения сущностей

ProjectRacing/Entities/Horse.cs

@@ -9,10 +9,9 @@ public class Horse
     public bool Sex { get; private set; }
 
     public DateOnly Birthday { get; private set; }
-    public Owner? Owner { get; private set; }
     public int OwnerId { get; private set; }
 
-    public static Horse CreateEntity(int id, string nameOfHorse, bool sex, DateOnly birthday, Owner owner)
+    public static Horse CreateEntity(int id, string nameOfHorse, bool sex, DateOnly birthday, int ownerId)
     {
         return new Horse
         {
@@ -20,8 +19,7 @@ public class Horse
             NameOfHorse = nameOfHorse,
             Sex = sex,
             Birthday = birthday,
-            Owner = owner,
+            OwnerId = ownerId
-            OwnerId = owner.Id
         };
     }
 }

ProjectRacing/Entities/Jockey.cs

@@ -7,7 +7,6 @@ public class Jockey
     public int Age {  get; private set; }
     public int Rating {  get; private set; }
     public string Number {  get; private set; } = string.Empty;
-
     public static Jockey CreateEntity(int id, string nameOfJockey, int age, int rating, string number)
     {
         return new Jockey

ProjectRacing/Entities/Owner.cs

@@ -4,7 +4,6 @@ public class Owner
     public int Id { get; private set; }
     public string NameOfOwner { get; private set; } = string.Empty;
     public string Number { get; private set; } = string.Empty;
-
     public static Owner CreateEntity(int id, string nameOfOwner, string number)
     {
         return new Owner

ProjectRacing/Entities/Participants.cs

@@ -4,28 +4,19 @@ public class Participants
 {
     public int ParticipantId { get; private set; }
     public int JockeyId {  get; private set; }
-    public Jockey? Jockey { get; private set; }
-
     public int HorseId { get; private set; }
-    public Horse? Horse { get; private set; }
-
     public int CompetitionsId {  get; private set; }
-    public Competitions? Competitions { get; private set; }
-
     public TimeSpan HorseTime { get; private set; }
     public int HorsePlase {  get; private set; }
 
-    public static Participants CreateEntity(int id, Jockey jockey, Horse horse, Competitions competitions, TimeSpan horseTime, int horsePlace)
+    public static Participants CreateEntity(int id, int jockeyId, int horseId, int competitionsId, TimeSpan horseTime, int horsePlace)
     {
         return new Participants
         {
            ParticipantId = id,
-           Jockey = jockey,
+           JockeyId = jockeyId,
-           JockeyId = jockey.Id,
+           HorseId = horseId,
-           HorseId = horse.Id,
+           CompetitionsId = competitionsId,
-           Horse = horse,
-           Competitions = competitions,
-           CompetitionsId = competitions.Id,
            HorseTime = horseTime,
            HorsePlase = horsePlace
         };